Produces a plot for summary object of a fitted interval search model.
Plot 'visited' points against iteration steps. start.N points are initial points selected before interval search starts.

# S3 method for sum.intsearch
plot(x,type="summary",startN=21,... )

## Arguments

x |
an object of class `sum.intsearch` as returned by the function `summary.intsearch` . |

type |
type of plot to be drawn, `type="summary"` will plot the partial log likelihood deviance as a function of both tuning parameters α and logλ. The final solution will be highlighted by solid red line.
Alternativly, `type="points"` will draw the distribution of initial and visited points of the interval search plotted in chronological order. |

startN |
number of initial points. Needed if `type="points"` |

... |
additional argument(s) |

## Author

Natalia Becker \
natalia.becker@dkfz.de

## See also

## References

Sill M., Hielscher T., Becker N. and Zucknick M. (2014), *c060: Extended Inference with Lasso and Elastic-Net Regularized Cox and Generalized Linear Models, Journal of Statistical Software, Volume 62(5), pages 1--22.*
https://www.jstatsoft.org/v062/i05/